Which membrane potential occurs because of the influx of Na+?

The membrane potential that occurs because of the influx of Na+ is called the Na+ voltage. This voltage is responsible for initiating the action potential, which is the electrical signal that travels down the axon and causes the muscle to contract.

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What does an influx of sodium ions cause?

An influx of sodium ions into a neuron causes an action potential. This is because the influx of sodium ions causes the neuron to become more positively charged, which then causes the neuron to fire.

How does sodium influx affect the membrane potential?

The membrane potential is a measure of the electrical potential difference between the inside and outside of a cell. This potential is created by the unequal distribution of ions across the cell membrane. Sodium ions are positively charged, and they tend to move towards the negatively charged interior of the cell. This movement creates a negative membrane potential.

Which part of the action potential is produced by the rapid influx of sodium?

The action potential is produced by the rapid influx of sodium. This influx of sodium creates an electrical current that spreads throughout the neuron. This current causes the neuron to fire, which then sends a signal to the next neuron.

Does influx of sodium cause depolarization?

Yes, influx of sodium causes depolarization. This is because when sodium ions enter the cell, they cause the membrane potential to become more positive. This then leads to the activation of voltage-gated sodium channels, which in turn causes the neuron to fire.